... pneumatics and inlets 359Capillary columns 369Programmed column temperature 386Cryogenic techniques 390Element selective GC detectors 392Atomic Emission Detector 417Gas Chromatography-Mass Spectrometry ... 4.7.tivity, and as we know from discussions in Chapter 2, this limits IDLs and MDLs.Determinative Techniques to Measure Organics and Inorganics 339• Detectors in GC can be of low, medium, and high ... stationary phase is defined withrespect to the column support. Jennings26 has stated that with respect to GC, β isbetween 5 and 35 for packed GC columns and between 50 and 1000 for open tubularGC....